Ford has introduced their Flex Photo Lab application for the Apple iPhone to the Apple iTunes App Store. The Flex Photo Lab application is apparently supposed to be used with photographs and unlike most photographic apps if free.
Users can look on Flex Photo Lab as a mini version of the photoshop, obviously with much less features, but more than enough to keep an iPhoner quite happy. Flex Photo Lab for the iPhone allows the user to create effects along with other stuff by using their finger.
Flex Photo Lab offers control over Brightness and Contrast, Hue and Saturation, a Spot Burner, a Spot Lighter, just touch with finger to lighten an area, Electric Lines and Kaleidoscope.
Source — mobilewhack